SMS:PTM Traps

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Revision as of 20:17, 16 April 2013 by Jcreer (talk | contribs)
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Overview

A trap is defined as an area into which particles enter and are counted.

Global Trap Options

Global options affect all traps.

Individual Trap Options

Individual options are specified on a trap by trap basis.

  • The trap may be open (particles are free to leave) or closed.
  • Particles can be counted once per simulation (single trap) or every time they re-enter an open trap.
  • The trap can have a bottom and top elevation defining the portion of the water column the trap exists within.
  • ID – Integer value to identify the trap
  • Name – Text to identify the trap

Horizontal Line Traps

Horizontal line traps lie in a vertical plane, defined by the trap end points and a top and bottom elevation.

Horizontal line traps have a direction associated with them. The direction of a trap determines which particles the trap will count.

  • Decreasing x-coordinate – only counts particles passing through the trap moving in the negative x-direction.
  • Either direction – counts particles passing through the trap regardless of direction.
  • Increasing x-coordinate – only counts particles passing through the trap moving in the positive x-direction.

Horizontal Polygon Traps

Horizontal polygon traps lie on a horizontal plane and are extruded in the vertical direction based on the trap's top and bottom elevation.

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